Last modified: 2014-09-11 19:19:55 UTC
We seem to be experiencing a bunch of potentially related problems with the imagescaler and thumbnail functionality right now -- see https://commons.wikimedia.org/w/index.php?title=Commons:Village_pump&oldid=81621669#More_image_scaler_problems . I'm marking bugs as blocking this one if they have to do with thumbnail generation.
I think the most urgent bugs here are: Bug 39615 - 404 error for some files Bug 41174 - Many SVG files have stopped rendering Bug 41130 - ?action=purge on the file description page no longer regenerates thumbnails
Brion, I was wondering whether you think your https://gerrit.wikimedia.org/r/#q,24115,n,z changeset for high-res image support might have had any effect regarding the most recent thumbnailing issues?
Adding interested people.
(In reply to comment #2) > Brion, I was wondering whether you think your > https://gerrit.wikimedia.org/r/#q,24115,n,z changeset for high-res image > support might have had any effect regarding the most recent thumbnailing > issues? Actual thumbnail generation code paths are untouched here, so it shouldn't be doing anything too surprising... It should be causing some additional thumbnail generation to happen (as folks with Retina iPads and MacBooks browse), but should be relatively lightweight as we're using the delayed rendering options in production -- the files shouldn't get generated until they're actually loaded via the 404 handler, and only a small amount of our traffic should be hitting them so far.
Note that the Commons village pump post was from a guy who used a bot to scan for images that don't render. He didn't say that something had recently changed. I reviewed the images yesterday, and could only find one bug that was introduced recently (oggThumb version error), and that's fixed now. I fixed another issue (TIFF metadata too large), but that had probably been there since PagedTiffHandler was introduced.
(In reply to comment #5) > Note that the Commons village pump post was from a guy who used a bot to scan > for images that don't render. He didn't say that something had recently > changed. Sure. Some things did change but it's not trivial to identify them and they don't even necessarily have to change back (e.g. bug 41375, bug 41381, bug 41382 about new restictions). > I reviewed the images yesterday, and could only find one bug that was > introduced recently (oggThumb version error), and that's fixed now. You mean "OggHandler requires oggThumb version 0.9 or later" I guess, but bug 41376 still makes those files broken (and there are hundreds of them). > I fixed > another issue (TIFF metadata too large), but that had probably been there since > PagedTiffHandler was introduced. Most likely.
Thumbs are broken for local files on WikiVoyage http://fr.wikivoyage.org/wiki/Fichier:Map_of_Agra_Fort.jpg http://en.wikivoyage.org/wiki/File:Map_of_Agra_Fort.jpg
(In reply to comment #7) > Thumbs are broken for local files on WikiVoyage > http://fr.wikivoyage.org/wiki/Fichier:Map_of_Agra_Fort.jpg > http://en.wikivoyage.org/wiki/File:Map_of_Agra_Fort.jpg Should be fixed for all WV wikis as of a few days ago.
